Planer-head



(No Mom.) 2 sheets-sheet i.

s. E. MGDUFPIB. PLANER HEAD.

No. 583,502. Patentd June 1,1897.

WTNESSES NVENTOR (No Model.) e2 sheets-sheer 2. S. E. MGDUFPIE.

PLANER HEAD.

N0. 583,502. v Patented June 1,1897.

WTNESSES NI/ENTOR UNITED STATES ATENT rricn.

SIDI E. MCDUFFIE, OF ALOOLU, SOUTH CAROLINA.

PLAN ER-HEAD.

SPECIFICATION forming part of Letters Patent No. 583,502, dated J une 1,1897.

Application filed January 23, 1897. Serial No. 620,353. (No model.)

To all whom, t may concern:

Be it known that I, SIDI E. MCDUFFIE,a citizen of the United States,residing at Alcolu, in the county of Clarendon and State of Sou thCarolina, have invented certain new and useful Improvements inPlaner-Heads 5 and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which itappertains to make and use thesame.

My invention relates to rotary planer-heads used on woodworkingmachinery.

My object is to provide a planer head equipped with improvedgrooving-tools, novel means foradj usting and holding the same,andscales whereby the proper position of the tools can be accurately andquickly determined.

The grooving tools employed by me are used to groove the lumber, so thatsplines and grooves can be made for iiooring and other work and thetools orbits can be quickly and easily changed, so that different kindsof work can be done. Owing to the construction of the parts there is nodanger of the bits or tools becoming detached, while any desiredadjustment can be had.

The invention will be set forth more in detail in the followingdescription and the novel features thereof pointed out in the appendedclaims.

In the accompanying drawings, Figure lis a top perspective view of theplaner-head, showing the planing-knives and the tools in position; Fig.2, an elevation looking toward one of the adj Listing-screws, theclamps, and a grooving tool or bit; Fig. 3, an end elevation; Fig. 4, avertical section on line at a: of Fig. 3 5 Fig. 5, a View of the wrenchemployed.

The planer-head is designated by the numeral 1, the same being providedwith the usual T-shaped slots 2 on opposite sides.

The numeral 3 designates the opening which receives the spindle. c

At 4 are shown the planing-knives, which are secured to the head bybolts and nuts 5 5, said bolts having their heads lying in the T- shapedslots. This construction is old and well known to the art, and hence Ilay no claim to the same.

On opposite sides of the head are additional slots 6 6, extendingvertically the length of the head.

My improved mechanism on opposite sides of the head is the same, andhenceIwill only describe that found on one side thereof. There is abearing-box 7 set into the head at the top portion thereof, said boxbeing provided with two inner. shoulders 8 and 9.-

The numeral 10 designates an adjustingscrew which lies in the slot 6 andpasses up through the box, said screw being provided with a square upperend l1 and a head 12 on its lower end. Its-lower end portion is alsoblank, as at 13. v

The numeral 14 designates av nut having a circular base 15, which isreceived between the two shoulders of the box. There are two clampingmembers or jaws 16 and 17, the former being internally threaded, so thatit will move when the screw is turned, the latter being loosely receivedon the blank portion of said screw.

The numeral 18 designates the groovin g tool or bit which, it Will beobserved, has outer beveled edges 2O and 21, which are received in theoverhanging ledges 22 and 23 of the clamping members. There is a scale24 extending vertically on the side of the head, whereby thegrooving-tool can be brought to the proper position.

Fig. 5 shows the form of wrench employed for adjusting thegrooving-tool, said wrench comprising a shank 25, having a pocket 26,adapted to receive the squared end of the screw, and a larger pocket 27at its other end adapted to receive the nut. Said wrench is providedwith a handle 28.

It will be observed that by turning the nut the clamping members and thetool can be raised or lowered to any desired degree to bring the toolinto proper position on the scale to perform its office and that byturning the screw its upper clamp member can be moved toward or awayfrom the lower member, so that the tool can be released or clamped.

It will be evident to one skilled in the art to which my inventionappertains that said invention possesses many advantages, inasmuch asowing to the peculiar form of the clamping members the tools are firmlysecured and prevented from iiyin g off,while said tools can be adjusted,as desirable, and replaced by different tools quickly and easily. Bychanging the tools and the relative posi- IOO tions thereof differentkinds of work can be treated and the changes made without necessitatingthe removal of the planer-head from its spindle.

rIlhere are many slight and immaterial changes which could be resortedto in carrying out the invention without departing from any of theadvantages thereof, and hence it is to be understood that I do not limitmyself to the precise construction herein shown and described, butconsider that I am entitled to such Variations as come within the spiritand scope of the invention.

Having thus described my invention, what I claim as new is- 1. 'Ihecombination with a planer-head, of a box carried thereby, a rotatablemember adapted to turn in said box, a screw threaded through saidmember, a clamp member through which the screw loosely passes, a

second clamp member through which the screw is threaded, and a tool heldby said clamp.

2. The combination with a planer-head, of a box connected thereto whichis provided with separated shoulders, a nut having a base which isreceived between said shoulders, a screw threaded through the nut andprovided with a blank portion, and ahead at its lower end, a clampmember loosely received on the blank portion, a second clamp memberthrough which the screw is threaded, and a tool located between saidclamp members.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

SIDI E. BICDUFFIE. \Vitn esses:

D. C. SHAW, R. J. ALDERMAN.

